Forging machine



F. A. HALLECK.

FORGING MACHINE. APPLICATION FILED MAR. 20, 1917.

1,40 5, 1 16. Patented Jan. 31, 1922.

shown for purposes of illustration one em- UNITE STATS P A T FRANK A.HALLECK, OF OAK PARK, ILLINOIS, ASSIGNOR T0 SULLIVAN MACHINERY COMPANY,A CORPORATION OF MASSACHUSETTS. I

FORGING -Acrrrnn' Specification of Letters Patent. lflatented J an. 31,1922;

Application filed March 20, 1917. Serial Ito. 156,192.

To all whom it may concern: Be it known that I, FRANK A. Harrison, acitizen of the United States, residing at Oak Park, in the county ofCook andSta-te of Illinois, have invented certain new and usefulImprovements in Forging Machines, of which the following is a full,clear, and exact specification. My invention relates to forgingmachines. It has for its object to guide and control one of the forgingmembers of such a'ma-v chine in an improved manner. A more specificobject of my invention is to provide an improved guiding means for theupsetting dolly of a forging machine whereby the dolly is guided in itsmovement in such a manner that excessive vibration and breakage of theparts is prevented. A still further object. of my invention is toprovide improved guiding means of the'character set forth, adapted to bereadily controlled, the same preferably being movable to and fromoperative position with the work clamping means. v

In the accompanying drawings, I have bodiment which my invention mayassume in practice, illustrating the same as applied to a forgingmachine or drill sharpener of the Wineman type.

In these drawings,

Fig. 1 is a partial longitudinal sectional View of a forging machineequipped with my improvement. 7

Fig.2 is a partial sectional view taken on line 2-2 of Fig. 1, showingthe dolly guiding means in end elevation and attached to the machine.

Fig. 3 is a detail central sectional view of the dolly guidingmeans perse.

Fig. i is a detail View showing the same.

in endelevation.

In these drawings, Ihave illustrated a sharpener comprising a frame 1having a stationary clamping die 2 and a vertically movable clamping die3, the latter being operated through the medium of a movable crosshead4:, which is in turn operated by a piston 5 through toggle mechanism 6.Cooperating with these clamping dies 2 and 3, and acting upon the end ofa drill steel clamped between the same, is a reciprocating upsetting.dolly 7 slidablymounted upon the frame 1 and slidably connected, as at8, to the end of a striking pin 9, which-is in resilient means.

turn operated by a piston v10 of a horizontally disposed motor 11. I Inmy improvement, this dolly 7 is guided 1n its movement by a floating oryielding gulde member or plate 12 which is normally pressed intoengagement with the dolly by These means, .as shown, comprise a"plurality of coiled springs 18, preferably disposed in suitablerecesses or cavities 14 in a guide carrying member 15 suitably attachedat 1 6 to the crosshead carrying the upper or vertically movableclarnping die 3. vIn a preferred form, these springs 13 are disposedalong the centerline of the plate 12 in such a manner as to hold thesame against the dolly with an even pressure, and the plate 12 ispermitted a limited vertical movement, the same moving in a recess 17 inthe member 15. It will also be noted that in the construction shown, thelower side edges ofv the floating plate 12 en gage with suitablecooperating flangesll9 on the member 15 in such a manner as to limit thepossible downward movement ofythe the plate 12, and heroin at rightangles thereto, which may engage with the sides of the dolly and preventexcessive lateralm'ovement thereof, and that corresponding surfaces 21may be provided upon a cooperating lower plate 22 disposed beneath thedolly and between the "latter-and the frame 1 In the operation of themachine, it'will'be noted that through the action of the plate and theadditional guiding surfaces provided,excessive vibration and theresultant breakage of the parts is prevented, at the same time that theplate is adapted to use with dollies of different sizesand to takeup'wear between the various surii'aces. It will also be noted that dueto the 'factthat the member15 is'attached to a part" moving with thecrosshead a, this member 15 the guide 12'will be automatically lifted,out

ofengagement with the dolly/7' to" permit access to be hadtheretowhenthe clamping die 3 is lifted to release the steel, [the plate12 then being held by the springs 13 inthe be removed, but the dolly maybe removed or changed when desired by simply slipping the sameoif theend of its actuating or striking pin 9.

WVhile I have in this application specifically described one embodimentwhich my invention may assume in practice, it is of course to beunderstood that the invention may be modified and embodied in variousother forms without departing from its spirit, it being my intention toinclude all such modifications within the scope of the appended claims.

WVhat I claim as new and desire to secure by LettersPatent is:

1. In a forging machine, work clamping means, a dolly, a hammeroperating upon said dolly, and meansfor resiliently guiding said dolly.

2. In a forging machine, work holding means, a dolly, a hammer adaptedto operate upon said dolly, and guiding means resiliently engaging saiddolly during operation thereof, but movable out of engagement therewithat intervening periods to permit access thereto.

3. In a forging machine, work clamping means, a dolly, a hammeroperating upon said dolly, a member for guiding said dolly, and a springfor normally pressing said member intov operative positionfor guidingsaid dolly during operation thereof.

4;. In a forging machine, work clamping means, a dolly, a hammeroperating upon said dolly, and guiding means for said dolly resilientlyengaging the latter during dollying operation, the operative engagementof said guiding means with said dolly being controlled by said clampingmeans.

5. In a forging machine, clamping means including a movable clampinmember, a dolly acting upon work clamped between said clamping means,and normally opcrative dolly vibration absorbing means movable with saidmovable member.

6. In a forging machine, clamping means including a movable clampingmember, a dolly-acting upon work clamped between said clamping means,and normally operative resilient dolly vibration absorbing and guidingmeans movable with said inov able member.

7. In a forging machine, work clamping means, a work engaging dolly, ahammer operating upon said dolly, and a spring pressed member carried bysaid clamping means and normally engaging with said dolly during theoperation thereof.

.8. In a forging machine, work clamping means, a dolly, a hammeroperating upon said dolly, and dolly guiding means disposed on oppositesides of said dollydneluding a fixed memberand a spring pressed membernormally engaging said dolly.

9. In a forging machine, clamping means including a movable element, adolly, a hammer operating upon said dolly, and dolly guiding meansdisposedon opposite sides of said dolly including a spring pressed platenormally engaging said dolly and bodily movable with the movable elementof said clamping means.

10. In a forging machine, cooperating clamping elements, a dollyengageable with the work clamped between said elements, a guidingmemberrelative to which said dolly is movable, and resilient meansacting along the median line of said member normally pressing the sameinto engagement with said dolly.

11. In a forging machine, clamping elements, a dolly engageable with thework clamped between said elements, a guiding member engageable withsaid dolly, and a plurality of coiled springs acting along the medianline of said member nor mally pressing the same into engagement withsaid dolly.

12. In a forging machine, cooperating clamping elements, a dollyengageable with the work clamped between said elements, a guiding memberengageable with said dolly, resilient means normally pressing saidguiding member into engagement with said dolly, and means for limitingthe movement of said guiding member.

13. In a forging machine, clamping means [including a movable clampingmember, a

dolly engageable with the work clamped in said. clamping means, aguiding member disposed at one side of said dolly, cooperating guidingmeans disposed on the other cooperating side of said dolly, resilientmeans normally 7 pressing said member into engagement with said dolly,and a reciprocating member intermittently engageable with said dolly.

14;. In a forging machine, cooperating clamping elements, a dollyengageable with the work clamped between said elements, a guiding memberengageable with said dolly, resilient means normally pressing saidguiding member" into engagement with. said dolly, and cooperating meansdisposed on opposite sides of said dolly for limiting the lateralmovement thereof.

15. In a forging machine, cooperating clamping elements, a dollyengageable with the .work clamped between said elements, a guidingmember engageable with said dolly, resilient means normally pressingsaid guiding member into engagement with said dolly, and cooperatingmeans disposed on opposite sides of said dolly and above and below thesame for limiting. the lateral movement thereof. a

16. In a forging machine, work clamping means, a dolly acting upon work'held by said clamping means, and yielding means engaging said dolly forguiding the same.

1'7. In a forging machine, work clamping clamping means, and means forguiding said dolly including a yielding dolly engaging member carried byand movable with said movable clamping member.

20. In a forging machine, work clamping means comprising a fixedclamping member and a cooperating movable clamping member, a dollyacting upon work held by said clamping means, and means for guiding saiddolly including a fixed guiding member and a cooperating guiding membercarried by and movable with said movable clamping member. V

21. In a forging machine, work clamping means comprising a. fixedclamping member and a cooperating movable clamping member, a dollyacting upon work held by said clampin means, and means for guiding saiddolIy including a fixed guiding member and a cooperating dolly engagingmember yieldingly mounted on and movable with said movable clampingmember. 7

22. In a forging machine, a work clamping means including a clampingmember movable into a plurality of positions, a dolly, a member adaptedto guide the dolly, and a member controlled by the position of saidfirst named member for placing said dolly guiding member under pressurewhen said clamping member is 111 work clamping position.

23. In a forging machine, a work clamping means including a clampingmember movable into a plurality of positions, a dolly, a member adaptedto guide the dolly, and resilient means controlled by the position ofsaid first named member for placing said dolly guiding member underpressure when said clamping member is in work clamping position. I

24. In a forging machine, a' work clamping means including a movableclamping member, a dolly, a member adapted to be moved into engagementwith said dolly to hold it in operatingposition, and a member -movableto place said dolly engaging member under pressure when said clampingmember is in work clamping positlon.

25. In a forglng machine, clamping means including a movable clampingmember, a

dolly adapted to act upon Work clamped between said clamping means,guiding means including a member engageable with said dolly, a springcarried by said clamping means and adapted to press said guiding memberagainst said dolly, said parts being constructedand arranged so thatmovement of the movable clamping member to clamping position places saidspring under com pression.

26. In a forging machine, clamping means comprising a movable member, adolly adapted to operate upon the work clamped by said clamping means,guiding means including a member engageable with said dolly and movableout of engagement therewith to permit access to said dolly-when saidmovable clamping member is moved to nonclamping position, a springcarried by said movable member and adapted when said movable clampingmember is in clamping position to press said dolly guiding memberagainst said dolly.

27. In a drill sharpener, the combination[ comprising a dolly, a base, adolly guide on said base having bottom and side walls formed thereon,acover member adapted to cooperate with said guide in the holding ofsaid dolly, and resilient means for holding said cover member inoperative relation to said dolly. p 28. In a forging machine, clampingmech' anism comprising a movable jaw, a dolly, a dolly holder having amovable section, and means carried by said movable jaw and en gagingsaid section for retaining the latter in operative relation to saiddolly.

' In testimony whereof I aflix my signature.

FRANK A. HALLECK.

